Development and application of a three-dimensional finite element vapor intrusion model. Simulation of the vapor intrusion process for nonhomogeneous soils using a three-dimensional numerical model. Providence, RI: Brown University 2009.īozkurt O, Pennell KG, Suuberg EM. Investigation of vapor intrusion scenarios using a three-dimensional numerical model. Influence of fluctuating groundwater table on volatile organic chemical emission flux at a dissolved chlorinated-solvent plume site. Guo YM, Holton C, Luo H, Dahlen P, Johnson PC. A review of recent vapor intrusion modeling work. As a result, it is almost impossible for numerical models to be employed as VI risk screening tools. In fact, most users of numerical models are experienced, academic researchers. Those requirements make it challenging to be used by ordinary investigators. Not to mention the extra training to use modeling software. However, numerical models cannot be implemented in Excel spreadsheets and usually require relevant knowledge involving fluid dynamics and chemical transport. Thus, numerical models are often used to investigate the influences of key environmental factors, such as source depth and strength, in typical or non-typical VI scenarios. Compared to the analytical VI models, most of which are one-dimensional (1D), numerical VI models are capable of simulating complicated soil vapor transport in two or three dimensions. Instead, the solutions of models are calculated with numerical methods such as finite difference or finite element to obtain an approximate solution. Numerical models are those solved without mathematical solutions in analytical form.
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